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Difficulty: EasyPharmacological and Parenteral Therapies

A pediatric client is prescribed ibuprofen 200200 mg by mouth for a fever. The pharmacy dispenses an ibuprofen oral suspension labeled 100100 mg/55 mL. How many milliliters will the nurse administer to the client for this single dose?

  1. A
    22 mL
  2. B
    2.52.5 mL
  3. C
    55 mL
  4. 1010 mLAnswer

Answer

1010 mL
To determine the correct volume to administer, the standard dosage calculation formula DesiredHave×Volume\frac{\text{Desired}}{\text{Have}} \times \text{Volume} is used. The desired dose is 200200 mg, the available dose is 100100 mg, and the available volume is 55 mL. Therefore, 200100×5=2×5=10\frac{200}{100} \times 5 = 2 \times 5 = 10 mL. Administering 1010 mL safely provides the prescribed 200200 mg of ibuprofen.

Step-by-Step Solution

1
Identify the prescribed dose (Desired) and the available concentration (Have).
Desired = 200200 mg; Have = 100100 mg in 55 mL.
Accurate identification of prescription parameters is required for safe dosage calculation.
2
Apply the standard dosage calculation formula: DesiredHave×Volume\frac{\text{Desired}}{\text{Have}} \times \text{Volume}.
200 mg100 mg×5 mL\frac{200\text{ mg}}{100\text{ mg}} \times 5\text{ mL}.
This formula ensures the correct volume is administered to deliver the exact prescribed milligram dose.
3
Perform the mathematical calculation to find the final volume.
2×5 mL=10 mL2 \times 5\text{ mL} = 10\text{ mL}.
Completing the arithmetic provides the correct volume to be administered to the client.

Key Concept

Dosage Calculation for Oral Suspensions
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Topics

Pharmacological and Parenteral Therapies

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